I think it's important to remember one of the primary functions of the spot tracker. Sure it allows folks at home to follow their friends/ family etc and it provides a measure of transparency with regard to adherence to the rules, but IMO the most important job they do is provide a layer of safety for every rider.
Having a bunch of blue dot stalkers watching over you is a great comfort (and incentive). The guy who went awol in Yellowstone is probably pretty happy he had a spot on him. Riding lonely rural roads in the wee small hours can be a scary experience for some, and having a gps tracker does make you feel that bit better.
In all the talk of DQ's and orange dots (which I like in concept), I reckon it's important that as many dots as possible stay "alive" and on screen. I think it's good for everyone involved, racers, stalkers, supporters and organisers, etc....